Response to Increasing Southern Hemisphere Winds in CCSM4
Response to Increasing Southern Hemisphere Winds in CCSM4
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DOI：
10.1175/jcli-d-10-05011.1
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发表时间：
2011-10-01
影响因子：
4.9
通讯作者：
Danabasoglu, Gokhan
中科院分区：
文献类型：
--
作者：
Gent, Peter R.;Danabasoglu, Gokhan
本文描述了两个扰动试验的结果，试验中使用了共同体气候系统模式第4版，其中南半球纬向风应力增加。它表明，海洋响应是在雅阁与实验使用高得多的分辨率的海洋模式，不使用涡流参数化。在粗分辨率气候模式中获得适当响应的关键是在Gent和McWilliams涡旋参数化中指定一个可变系数，而不是一个常数。这一结果与最近的几篇论文形成对比，这些论文认为粗分辨率气候模式无法获得适当的响应。
Results from two perturbation experiments using the Community Climate System Model version 4 where the Southern Hemisphere zonal wind stress is increased are described. It is shown that the ocean response is in accord with experiments using much-higher-resolution ocean models that do not use an eddy parameterization. The key to obtaining an appropriate response in the coarse-resolution climate model is to specify a variable coefficient in the Gent and McWilliams eddy parameterization, rather than a constant value. This result contrasts with several recent papers that have suggested that coarse-resolution climate models cannot obtain an appropriate response.